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Acute Coronary SyndromeNCT02941588

The Impact of Early Surgery and Maintenance of Antiplatelet Therapy on Intraoperative Bleeding and Major Adverse Cardiovascular Event After Percutaneous Coronary Intervention

An observational study of Acute Coronary Syndrome and Drug-eluting Stent, run by Seoul National University Hospital at 1 site in South Korea.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Recent guidelines of the ACC/AHA suggest that elective non-cardiac surgery (NCS) should optimally be delayed one year after percutaneous coronary intervention (PCI) with drug-eluting stent (DES). Read more about this study

Who is it for?
Ages 20 years and older
What is being tested?
Non-cardiac surgery
Type of treatment
Surgery or procedure
How many people
1,582 participants
Where
1 siteSouth Korea
Study dates
Apr 2016to Nov 2017
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 20 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Adult patients who underwent non-cardiac surgery within 5 years after percutaneous coronary intervention with drug-eluting stent at Seoul National University Hospital between April 2004 and August 2017

Who may be able to join

  • Adult patients who underwent non-cardiac surgery within 5 years after percutaneous coronary intervention with drug-eluting stent at Seoul National University Hospital between April 2004 and August 2017

Who cannot join

  • Patients who underwent percutaneous coronary intervention with balloon angioplasty or bare metal stent

Trial locations and contacts

1 site in 1 country.

South Korea1 site
  • Seoul National University Hospital

    Seoul, 03080

Other trials in South Korea

About this study

Recent guidelines of the ACC/AHA suggest that elective non-cardiac surgery (NCS) should optimally be delayed one year after percutaneous coronary intervention (PCI) with drug-eluting stent (DES). Regarding the antiplatelet agents, dual antiplatelet therapy, or at least aspirin is recommended to be continued considering the relative risk of bleeding and stent thrombosis especially during the first 4 to 6 weeks after DES implantation. However, these recommendations are based upon insufficient and conflicting evidences.

Read the detailed description

Recent guidelines of the ACC/AHA suggest that elective non-cardiac surgery (NCS) should optimally be delayed one year after percutaneous coronary intervention (PCI) with drug-eluting stent (DES). Regarding the antiplatelet agents, dual antiplatelet therapy, or at least aspirin is recommended to be continued considering the relative risk of bleeding and stent thrombosis especially during the first 4 to 6 weeks after DES implantation. However, these recommendations are based upon insufficient and conflicting evidences.

The aim of our study was (1) to determine independent risk factors for postoperative adverse events and the strength of their association, (2) to assess the incidences of postoperative morbidities including major adverse cardiovascular and cerebral event as a function of time between PCI and surgery and (3) to compare bleeding amount and transfusion requirements between different intervals from PCI to surgery and durations of antiplatelet agent administration prior to surgery. To achieve this aim, we undertook a retrospective cohort study of the patients who underwent noncardiac surgery after PCI with DES.

Being tested
Non-cardiac surgery
Medical subject headings
Acute Coronary Syndrome

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Non-cardiac surgeryProcedure or surgery

    Any surgery with general anesthesia except cardiac surgery

Study groups in NCT02941588
Study groupRoleWhat they receive
non-cardiac surgery after DESThe patients who underwent non-cardiac surgery after percutaneous coronary intervention with drug-eluting stent
Receives: Procedure: Non-cardiac surgery

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Major adverse cardiovascular and cerebral event

    a composite of non-fatal myocardial infarction, coronary revascularization, pulmonary embolism and stroke

    Measured: during postoperative 30 days

Secondary outcomes (2)
  1. Composite morbidity

    composite of overall postoperative morbidity, including Major adverse cardiovascular and cerebral event and all respiratory, cardiac, renal and other complications during postoperative 30 days.

    Measured: during postoperative 30 days

  2. Major bleeding event

    a bleeding event with any one of the following (1) A preoperative hematocrit ≤ 30% or a drop of hematocrit ≥10% as well as transfusion of ≥2 units of RBC during the surgery, or (2) the patient received a transfusion of ≥4 units of red blood cells within a 24 hour period, or (3) any one of the following interventions (i.e., embolization, superficial vascular repair, nasal packing); or retroperitoneal, intraspinal or intraocular bleeding (confirmed clinically or on imaging).

    Measured: during the 24 hours from the surgery

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Oct 2016 (estimated)
  2. Study startApr 2016
  3. Primary completionNov 2017
  4. Study completionNov 2017

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Retrospective
Enrolment
1,582 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02941588
Sponsor's protocol ID
1604-023-753
Status last verified
Nov 2017
First submitted
20 Oct 2016
Last updated
8 Nov 2017
Results posted
No
Data monitoring committee
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Acute Coronary Syndrome and Drug-eluting Stent, run by Seoul National University Hospital at 1 site in South Korea.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 8 Nov 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in South Korea. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Major adverse cardiovascular and cerebral event (time frame: during postoperative 30 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Nov 2017.

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